CVE-2016-1576

Published on: 05/02/2016 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:27:05 PM UTC

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Certain versions of Ubuntu Core from Canonical contain the following vulnerability:

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.

  • CVE-2016-1576 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.8 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 7.2 - HIGH

Access
Vector
Access
Complexity
Authentication
LOCAL LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
COMPLETE COMPLETE COMPLETE

CVE References

Description Tags Link
launchpadlibrarian.net
text/x-diff
URL Logo MISC launchpadlibrarian.net/235300225/0006-overlayfs-Propogate-nosuid-from-lower-and-upper-moun.patch
Overlayfs Over Fuse Local Root Privilege Escalation Exploit
www.halfdog.net
text/xml
URL Logo MISC www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/
oss-security - Overlayfs over Fuse Privilege Escalation in USERNS www.openwall.com
text/html
URL Logo MLIST [oss-security] 20160224 Overlayfs over Fuse Privilege Escalation in USERNS
Bug #1535150 “CVE-2016-1576” : Bugs : linux package : Ubuntu bugs.launchpad.net
text/html
URL Logo CONFIRM bugs.launchpad.net/bugs/1535150
kernel/git/torvalds/linux.git - Linux kernel source tree git.kernel.org
text/html
URL Logo MISC git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360
CVE-2016-1576 in Ubuntu people.canonical.com
text/html
URL Logo CONFIRM people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1576.html
launchpadlibrarian.net
text/x-diff
URL Logo MISC launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
CanonicalUbuntu Core15.04AllAllAll
Operating
System
CanonicalUbuntu Core15.04AllAllAll
Operating
System
CanonicalUbuntu Linux12.04AllAllAll
Operating
System
CanonicalUbuntu Linux14.04AllAllAll
Operating
System
CanonicalUbuntu Linux15.10AllAllAll
Operating
System
CanonicalUbuntu Linux16.04AllAllAll
Operating
System
CanonicalUbuntu Linux16.10AllAllAll
Operating
System
CanonicalUbuntu Linux12.04AllAllAll
Operating
System
CanonicalUbuntu Linux14.04AllAllAll
Operating
System
CanonicalUbuntu Linux15.10AllAllAll
Operating
System
CanonicalUbuntu Linux16.04AllAllAll
Operating
System
CanonicalUbuntu Linux16.10AllAllAll
Operating
System
CanonicalUbuntu Touch15.04AllAllAll
Operating
System
CanonicalUbuntu Touch15.04AllAllAll
Operating
System
LinuxLinux KernelAllAllAllAll
  • cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_touch:15.04:*:*:*:*:*:*:*:
  • cpe:2.3:o:canonical:ubuntu_touch:15.04:*:*:*:*:*:*:*:
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*: